1 files changed, 112 insertions, 0 deletions
diff --git a/www/wiki/extensions/SemanticMediaWiki/src/Deserializers/DVDescriptionDeserializer/SomeValueDescriptionDeserializer.php b/www/wiki/extensions/SemanticMediaWiki/src/Deserializers/DVDescriptionDeserializer/SomeValueDescriptionDeserializer.php
new file mode 100644
index 00000000..596245b0
--- /dev/null
+++ b/www/wiki/extensions/SemanticMediaWiki/src/Deserializers/DVDescriptionDeserializer/SomeValueDescriptionDeserializer.php
@@ -0,0 +1,112 @@
+<?php
+
+namespace SMW\Deserializers\DVDescriptionDeserializer;
+
+use InvalidArgumentException;
+use SMW\DIWikiPage;
+use SMWDataValue as DataValue;
+
+/**
+ * @private
+ *
+ * @license GNU GPL v2+
+ * @since 2.3
+ *
+ * @author mwjames
+ */
+class SomeValueDescriptionDeserializer extends DescriptionDeserializer {
+
+	/**
+	 * @since 2.3
+	 *
+	 * {@inheritDoc}
+	 */
+	public function isDeserializerFor( $serialization ) {
+		return $serialization instanceof DataValue;
+	}
+
+	/**
+	 * @since 2.3
+	 *
+	 * @param string $value
+	 *
+	 * @return Description
+	 * @throws InvalidArgumentException
+	 */
+	public function deserialize( $value ) {
+
+		if ( !is_string( $value ) ) {
+			throw new InvalidArgumentException( 'Value needs to be a string' );
+		}
+
+		// https://www.w3.org/TR/html4/charset.html
+		// Internally encode something like [[Help:>Foo*]] since &lt; and &gt;
+		// would throw off the Title validator; apply only in combination with
+		// a NS such as [[Help:>...]]
+		$value = str_replace( [ ':<', ':>' ], [ ':-3C', ':-3E' ], $value );
+
+		$comparator = SMW_CMP_EQ;
+		$this->prepareValue( $value, $comparator );
+
+		$this->dataValue->setOption(
+			DataValue::OPT_QUERY_COMP_CONTEXT,
+			( $comparator !== SMW_CMP_EQ && $comparator !== SMW_CMP_NEQ )
+		);
+
+		$this->dataValue->setUserValue( $value );
+
+		if ( !$this->dataValue->isValid() ) {
+			return $this->descriptionFactory->newThingDescription();
+		}
+
+		$dataItem = $this->dataValue->getDataItem();
+
+		$description = $this->descriptionFactory->newValueDescription(
+			$dataItem,
+			$this->dataValue->getProperty(),
+			$comparator
+		);
+
+		// Ensure [[>Help:Foo]] === [[Help:>Foo]] / [[Help:~Foo*]] === [[~Help:Foo*]]
+		if ( $dataItem instanceof DIWikiPage && $dataItem->getNamespace() !== NS_MAIN ) {
+			$description = $this->findApproriateDescription( $comparator, $dataItem, $description );
+		}
+
+		return $description;
+	}
+
+	private function findApproriateDescription( $comparator, $dataItem, $description ) {
+
+		$value = $dataItem->getDBKey();
+
+		// Normalize a possible earlier encoded string part in order for the
+		// QueryComparator::extractComparatorFromString to work its magic
+		if ( $comparator === SMW_CMP_EQ || $comparator === SMW_CMP_NEQ ) {
+			$value = str_replace( [ '-3C', '-3E' ], [ '<', '>' ], $value );
+			$this->prepareValue( $value, $comparator );
+		}
+
+		// No approximate, use the normal ValueDescription
+		if ( $comparator === SMW_CMP_EQ || $comparator === SMW_CMP_NEQ ) {
+			return $description;
+		}
+
+		// The NS has been stripped, use a normal value clause in the MAIN namespace
+		$valueDescription = $this->descriptionFactory->newValueDescription(
+			$this->dataItemFactory->newDIWikiPage( $value, NS_MAIN ),
+			null,
+			$comparator
+		);
+
+		// #1652
+		// Use [[Help:~Foo*]] as conjunctive description since the comparator
+		// is only applied on the sortkey that contains the DBKey part
+		$description = $this->descriptionFactory->newConjunction( [
+			$this->descriptionFactory->newNamespaceDescription( $dataItem->getNamespace() ),
+			$valueDescription
+		] );
+
+		return $description;
+	}
+
+}